Firstly before you buy the 3 core you can determine wether or not the armour is sufficient to act as the CPC (or bonding conductor etc), either by 54G OR the adiabatic. If the armour on a 2 core is sufficient then why buy 3 core?Fattony said:At what point do you stop using 3 core and start running a seperate cpc?
1) So that you don't have to rely on the integrity of the armour, either the quality of its connection via the glands, or its long-term condition if any water gets in and rusts it?Spark123 said:If the armour on a 2 core is sufficient then why buy 3 core?
Good point.Spark123 said:Wouldn't the armour comply with being used as part of a main equipotential bond as long as its csa is greater than 10mm² copper equivalent (providing 10mm² acceptable by DNO)?
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local